Original catalogue drawing - NSK catalogue, page 55
Scanned from the manufacturer catalogue page listing this part number. All part numbers printed on that table share the same drawing.
Scale cross-section
Blue = inner / outer ring, yellow = rolling element. Drawn to scale from this part's own
dimensions for selection reference only - not a manufacturing or assembly drawing.
Dimension table (mm / inch)
Symbol
Dimension
mm
inch
d
Bore diameter
260
10.2362
D
Outside diameter
540
21.2598
B
Inner-ring / bearing width
102
4.0157
Notes
Cylindrical roller entries from the NSK inch catalogue are series numbers covering the N / NU / NJ / NUP / NH prefixes of the same size. Weights are given in kg. Load ratings are shown in both the original catalogue units and the converted value (1 N = 0.2248 lbf). Data is provided for selection reference only - confirm against the latest official catalogue before ordering.
Main dimensions
Bore d (mm)
260
Bore d (in)
10.2362
Outside dia. D (mm)
540
Outside dia. D (in)
21.2598
Width B (mm)
102
Width B (in)
4.0157
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
345000
Basic static load rating Cor (lbs)
469000
Limiting speed - grease (rpm)
1,000
Limiting speed - oil (rpm)
1,200
Weight
Weight (kg)
116.573
Mounting dimensions (fillets / shoulders)
Fillet ra max (in)
0.197
Fillet rb max (in)
0.197
Shaft shoulder da min (in)
11.260
Housing shoulder Da max (in)
20.236
Shaft shoulder db min (in)
11.260
Shaft shoulder db max (in)
12.992
Housing shoulder Db min (in)
18.583
Housing shoulder Db max (in)
20.236
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 300 rpm
4
383,659
102
5,644
6
255,773
392
21,805
8
191,830
1,024
56,889
10
153,464
2,154
119,691
15
102,309
8,323
462,415
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 1,534,636 N. Hours = L10 x 106 / (60n). Life-modification factors for lubrication, contamination and temperature (aISO) are not included.
Source & traceability
Brand
NSK
Source catalogue
NSK inch product catalogue
Catalogue page
p.57 (dimensions) / p.58 (ratings)
Dimensions in inches and millimetres, load ratings in lbs.
Send us the quantity you need and we will come back with price and
lead time, normally within 24 hours. Equivalent parts from other brands can be quoted at the same time.
